Well, there is the other option of backing it up in several places, which I'd have thought anybody with a modicum of common sense will do.
Personally I keep a paper logbook that I've had for ever, but an electronic logbook which I wrote myself in MS Excel. If anything needs to go to the CAA - which I seem to have done about once per year lately, I print the whole thing out, sign the first and last pages, and they've been perfectly happy with that.
G